WO2018150796A1 - Heat medium heating apparatus and vehicle air conditioning apparatus - Google Patents

Heat medium heating apparatus and vehicle air conditioning apparatus Download PDF

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Publication number
WO2018150796A1
WO2018150796A1 PCT/JP2018/001368 JP2018001368W WO2018150796A1 WO 2018150796 A1 WO2018150796 A1 WO 2018150796A1 JP 2018001368 W JP2018001368 W JP 2018001368W WO 2018150796 A1 WO2018150796 A1 WO 2018150796A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat medium
width
flow path
casing
seal surface
Prior art date
Application number
PCT/JP2018/001368
Other languages
French (fr)
Japanese (ja)
Inventor
足立　知康
Original Assignee
三菱重工サーマルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Priority to CN201880012030.0A priority Critical patent/CN110300672A/en
Priority to US16/485,687 priority patent/US20190359033A1/en
Priority to DE112018000890.8T priority patent/DE112018000890T5/en
Publication of WO2018150796A1 publication Critical patent/WO2018150796A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2221—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating an intermediate liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/26—Ventilating openings in vehicle exterior; Ducts for conveying ventilating air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0236—Industrial applications for vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system

Definitions

  • the present invention relates to a heat medium heating device and a vehicle air conditioner including the heat medium heating device.
  • Conventional heat medium heating devices constituting vehicle air conditioners include a PTC heater having a PTC (Positive Temperature Coefficient) element as a heating element.
  • Patent Document 1 discloses a heat in which a PCT heater is disposed between a first casing part in which a first heat medium flow path is formed and a second casing part in which a second heat medium flow path is formed. A medium heating device is disclosed.
  • Patent Document 1 discloses a communication portion that includes a first communication port and a heat medium that moves between a first heat medium flow channel and a second heat medium flow channel.
  • the first communication port is provided in the first casing part and communicates with the first heat medium flow path.
  • the second communication port is provided in a portion of the second casing portion that faces the first communication port and communicates with the second heat medium flow path.
  • a liquid gasket is sandwiched between the first casing portion and the second casing portion, thereby sealing between the first casing portion and the second casing portion. Things have been done.
  • the liquid gasket may protrude inside the communication portion, and the opening diameter of the communication portion may be reduced. There is a possibility that the flow of the heat medium passing through the communication portion is obstructed.
  • the present invention provides a heat medium heating device and a vehicle air conditioner capable of suppressing the obstruction of the flow of the heat medium flowing through the communication portion that communicates the first heat medium flow channel and the second heat medium flow channel.
  • the purpose is to provide.
  • a heating medium heating device includes a flat first sealing surface, a first heating medium channel through which a heating medium flows, and the first heating medium flow.
  • a first casing part including a first communication port which is in communication with a path and has one end adjacent to the first sealing surface; a second sealing surface which is a flat surface facing the first sealing surface; A second heat medium flow path through which the heat medium flows, and a second heat flow path that communicates with the second heat medium flow path and that has one end adjacent to the second sealing surface communicated with one end of the first communication port.
  • a second casing portion including the communication port, a communication portion including the first communication port and the second communication port, at least one opening provided in the first and second casing portions, and A casing having a recess, and the first heat medium flow path accommodated in the casing, A PTC heater disposed between the second heat medium flow path and a liquid gasket provided between the first seal surface and the second seal surface, the opening and One end of the recess is provided with a first inclined portion including a first inclined surface that is inclined with respect to the first seal surface or the second seal surface and expands the diameter of the opening or the recess.
  • One end of the first and second communication ports is inclined with respect to the first seal surface or the second seal surface, and the first communication port Alternatively, a second inclined portion including a second inclined surface 51a that expands one end of the second communication port is provided, and the width of the second inclined portion is the width of the first inclined portion. Wider than.
  • the width of the second inclined portion provided at one end of the first communication port is made wider than the width of the first inclined portion provided at one end of the at least one opening and the recess.
  • the width of the second inclined portion may be not less than 1.5 times and not more than 2.5 times the width of the first inclined portion.
  • the width of the second inclined portion is smaller than 1.5 times the width of the first inclined portion, it is formed between the second seal surface or the first seal surface and the second inclined surface.
  • the volume of the gap is reduced. As a result, it becomes difficult to keep the liquid gasket protruding from between the first seal surface and the second seal surface in the gap, and the liquid gasket is more likely to protrude inside the communicating portion.
  • the width of the second inclined portion is larger than 2.5 times the width of the first inclined portion, the first seal surface or the second seal surface disposed around the second inclined portion. It is difficult to ensure a sufficient width. In such a case, the sealing performance of the liquid gasket arranged between the first casing part and the second casing part may be lowered.
  • the width of the second inclined portion is set to be 1.5 to 2.5 times the width of the first inclined portion, so that the second inclined portion is disposed between the first casing portion and the second casing portion. It is possible to suppress the obstruction of the flow of the heat medium flowing through the communicating portion (inhibition due to the liquid gasket) while sufficiently securing the sealing performance of the liquid gasket.
  • An air conditioner for a vehicle is provided with the heat medium heating device, a blower that circulates outside air or air in the passenger compartment, and a downstream side of the blower, and cools the outside air or the air. And a radiator that is provided on the downstream side of the cooler and in which the heat medium heated by the PTC heater is circulated.
  • the vehicle air conditioner since the vehicle air conditioner includes the heat medium heating device, it is possible to suppress the obstruction of the flow of the heat medium that flows through the communication portion that communicates the first heat medium flow path and the second heat medium flow path. .
  • FIG. 3 is a schematic cross-sectional view of the heat medium heating device shown in FIG. 2 in the A 1 -A 2 line direction.
  • FIG. 4 is a schematic cross-sectional view in the B 1 -B 2 line direction of the heat medium heating device shown in FIG. 3.
  • It is a schematic cross-sectional view of a C 1 -C 2 along the line of the heat medium heating apparatus shown in FIG.
  • It is sectional drawing to which the part enclosed by the area
  • the vehicle air conditioner 10 which concerns on this embodiment is demonstrated.
  • the arrows shown in FIG. 1 indicate the flow direction of the outside air or the air in the passenger compartment.
  • the vehicle air conditioner 10 is an air conditioner applicable to, for example, a hybrid vehicle or an electric vehicle.
  • a vehicle air conditioner 10 includes a housing 11, a blower 13, a cooler 15, a radiator 16 constituting a heat medium circulation circuit 19, an air mix damper 17, and a heat medium heating device. And a heat medium circulation circuit 19 including 25.
  • the housing 11 includes an intake port 11A, a discharge port 11B, and a flow path 11C.
  • the intake port 11A is an opening for taking outside air or air in the vehicle interior (hereinafter simply referred to as “air”) into the flow path 11C.
  • the discharge port 11B is connected to a plurality of outlets provided in the passenger compartment for the air that has passed through the flow path 11C.
  • the flow path 11 ⁇ / b> C is a path through which air flows, and is partitioned in the housing 11.
  • the blower 13 is provided in the vicinity of the intake port 11A in the housing 11.
  • the blower 13 sucks air from the intake port 11 ⁇ / b> A and pumps the sucked air to the downstream side of the blower 13.
  • the cooler 15 is provided in the housing 11 located on the downstream side of the blower 13.
  • the cooler 15 is disposed so as to block a part of the flow path 11C.
  • the cooler 15 constitutes a refrigerant circuit together with a compressor, a condenser, and an expansion valve (not shown).
  • the cooler 15 evaporates the refrigerant adiabatically expanded by the expansion valve, thereby cooling the air passing through the cooler 15 and supplying the cooled air to the downstream side of the cooler 15.
  • the heat radiator 16 constitutes a heat medium circulation circuit 19 together with the circulation line 21, the tank 23, the pump 24, the engine (not shown), and the heat medium heating device 25.
  • the radiator 16 is provided in the flow path 11 ⁇ / b> C located on the downstream side of the cooler 15.
  • the radiator 16 has an inlet 16A and an outlet 16B connected to the circulation line 21.
  • a heat medium via the heat medium heating device 25 is introduced into the introduction port 16A through the circulation line 21.
  • the heat medium that has passed through the radiator 16 is led out to the circulation line 21 from the outlet 16B.
  • the radiator 16 heats the air by exchanging heat between the air cooled from the cooler 15 and the heat medium, and supplies the heated air to the downstream side.
  • the air mix damper 17 is provided in the flow path 11C located between the cooler 15 and the radiator 16.
  • the air mix damper 17 is a damper for adjusting the ratio between the amount of air that has passed through the radiator 16 and the amount of air that flows by bypassing the radiator 16.
  • the air mix damper 17 has a function of adjusting the temperature of air mixed downstream of the air mix damper 17.
  • the heat medium circulation circuit 19 includes a radiator 16, a circulation line 21, a tank 23, a pump 24, an engine (not shown), and a heat medium heating device 25.
  • the heat medium circulation circuit 19 heats the engine coolant with the heat medium heater 25 when the temperature of the engine coolant that is the heat medium does not increase so much, for example, during hybrid operation.
  • the air which passes the heat radiator 16 in the housing 11 is heated by circulating the heated engine-cooling water with the circulation line 21 with the pump 24.
  • the circulation line 21 is disposed outside the housing 11.
  • the circulation line 21 connects the radiator 16, the tank 23, the pump 24, the engine (not shown), and the heat medium heating device 25.
  • the circulation line 21 is a line for circulating the heat medium.
  • the vehicle air conditioner 10 When the vehicle air conditioner 10 is applied to a hybrid vehicle, for example, engine cooling water of the hybrid vehicle can be used as the heat medium. Further, when the vehicle air conditioner 10 is applied to an electric vehicle that does not include an engine, for example, brine or the like can be used as the heat medium.
  • the tank 23 is provided in the circulation line 21 located on the outlet 16B side. A heat medium is stored in the tank 23.
  • the pump 24 is provided in the circulation line 21 located on the downstream side of the tank 23.
  • the pump 24 supplies the heat medium in the tank 23 to the heat medium heating device 25.
  • the heat medium heating device 25 is provided in the circulation line 21 located between the pump 24 and the radiator 16.
  • the X direction is the longitudinal direction of the heat medium heating device 25
  • the Y direction is the short direction of the heat medium heating device 25 perpendicular to the X direction
  • the Z direction is the XY plane.
  • the stacking direction of the PTC heater 33 and the control board 37 perpendicular to is shown.
  • FIG. 7 as an example of the opening 49, an opening into which the first and second terminals 62A and 63A constituting the first and second electrode plates 62 and 63 of the PTC heater 33 are inserted is illustrated. Further, in FIG.
  • W 1 is the width of the first sealing surface 46a which is arranged around the second inclined portion 51A (hereinafter, referred to as “width W 1 ')
  • W 2 is the first inclined portion 50A Width (hereinafter referred to as “width W 2 ”)
  • W 3 indicate the width of the second inclined portion 51A (hereinafter referred to as “width W 3 ”), respectively.
  • the heat medium heating device 25 includes a casing 31, a liquid gasket 32, a PTC heater 33, an insulating member 34, and a control board 37.
  • the casing 31 includes a first casing part 41 including a first heat medium flow path 48, a second casing part 42 including a second heat medium flow path 56, and first and second heat medium flow paths. And a communication portion 43 for communicating with 48 and 56.
  • the first casing part 41 is separate from the second casing part 42.
  • the first casing part 41 includes a substrate housing part 45, a flow path forming part 46, and a lid part 47.
  • the substrate housing part 45 is provided between the flow path forming part 46 and the lid part 47.
  • the substrate housing part 45 includes a substrate housing space 45A, a heat medium inlet 45B, and a heat medium outlet 45C.
  • the substrate housing space 45A houses the control board 37.
  • the heat medium inlet 45B is connected to a circulation line 21 that circulates the heat medium.
  • the heat medium introduction port 45 ⁇ / b> B introduces the heat medium into the first and second heat medium flow paths 48 and 56 formed in the casing 31.
  • the heat medium outlet 45C is connected to the circulation line 21.
  • the heat medium outlet 45C guides the heat medium that has passed through the first and second heat medium flow paths 48 and 56 provided in the casing 31 to the circulation line 21.
  • the flow path forming unit 46 includes a plate-like member 46 ⁇ / b> A, a plurality of fins 46 ⁇ / b> B, at least one opening 49 and a recess 50, and a first communication port 51.
  • One or more openings 49 and recesses 50 may be provided.
  • the plate-like member 46A has a first seal surface 46a and a heater accommodating portion 46C.
  • the first seal surface 46 a is a plane that faces the second casing portion 42.
  • the first seal surface 46 a is a surface facing the second seal surface 53 a constituting the second casing part 42.
  • a liquid gasket 32 as a seal member is provided on the first seal surface 46a.
  • the width W1 of the first seal surface 46a can be set as appropriate.
  • the heater accommodating portion 46C is a recess 50 in which the PTC heater 33 is accommodated.
  • the PTC heater 33 is accommodated in the heater accommodating portion 46 ⁇ / b> C so as to face the first heat medium flow path 48 in the Z direction.
  • the plurality of fins 46B are provided on the plate member 46A on the side facing the substrate housing portion 45.
  • the plurality of fins 46 ⁇ / b> B protrude in the direction toward the substrate housing portion 45.
  • a first heat medium flow path 48 is defined between the side of the plate-like member 46 ⁇ / b> A where the plurality of fins 46 ⁇ / b> B are provided and the substrate housing portion 45.
  • the first heat medium flow channel 48 is a plurality of parallel flow channels through which the heat medium flows.
  • the first heat medium channel 48 communicates with the heat medium inlet 45B and the heat medium outlet 45C.
  • the first heat medium flow path 48 is disposed so as to face one surface of the PTC heater 33.
  • the opening 49 is provided so as to penetrate the plate-like member 46A.
  • One end of the opening 49 is adjacent to the first seal surface 46a.
  • a first inclined portion 49A including a first inclined surface 49a for expanding the diameter of the opening 49 is provided.
  • the first inclined surface 49a is a surface inclined with respect to the first seal surface 46a.
  • the periphery of the first inclined surface 49a is surrounded by a first seal surface 46a.
  • the liquid gasket 32 is disposed on the first inclined surface 49a.
  • the first inclined surface 49a faces the second seal surface 53a in the Z direction through the liquid gasket 32.
  • the recess 50 is a recess formed on the first seal surface 46a side of the plate-like member 46A. One end of the recess 50 is adjacent to the first seal surface 46a. At one end of the recess 50, a first inclined portion 50A including a first inclined surface 50a for expanding the diameter of the recess 50 is provided.
  • the first inclined surface 50a is a surface inclined with respect to the first seal surface 46a.
  • the periphery of the first inclined surface 50a is surrounded by the first seal surface 46a.
  • a liquid gasket 32 is disposed on the first inclined surface 50a.
  • the first inclined surface 50a faces the second seal surface 53a in the Z direction through the liquid gasket 32.
  • the width W 2 of the first inclined portion 50A is, for example, can be configured equal to the width of the first inclined portion 49A.
  • the heater accommodating part 46C and the heater accommodating part 46C are integrated, and the recessed part etc. in which a part of 2nd casing part 42 is accommodated can be illustrated, for example.
  • the width of 50A is equal (i.e., the first inclined portion 49A, the width of 50A is the case of the width W 2) will be described by way of example .
  • the first communication port 51 communicates with the first heat medium flow path 48 and constitutes a part of the communication part 43.
  • the first communication port 51 extends in the Z direction.
  • One end of the first communication port 51 is adjacent to the first seal surface 46a.
  • the periphery of the second inclined surface 51a is surrounded by the first seal surface 46a.
  • the inclination angle ⁇ of the second inclined surface 51a with respect to the first seal surface 46a can be, for example, 30 °, but is not limited to this angle.
  • Width W 3 of the second inclined portion 51A (the width W 3 of the portion where the second inclined portion 51A is formed), the first inclined portion 49A, may be configured to be wider than the width W 2 of 50A .
  • a second seal facing the second inclined surface 51a in the Z-direction The liquid gasket 32 protruding from between the first seal surface 46a and the second seal surface 53a can be disposed in the gap formed between the surface 53a and the second inclined surface 51a.
  • the width W 3 of the second inclined portion 51A, the first inclined portion 49A may be less than or equal to 2.5 times 1.5 times the width W 2 of 50A.
  • Width W 3 of the second inclined portion 51A is first inclined portion 49A, when less than 1.5 times the width W 2 of 50A, between the second sealing surface 53a and the second inclined surface 51a
  • the volume of the gap formed is reduced. Thereby, it may be difficult to keep the liquid gasket 32 protruding from between the first seal surface 46a and the second seal surface 53a in the gap.
  • the width W 3 of the second inclined portion 51A is first inclined portion 49A, the greater than 2.5 times the width W 2 of 50A, a first arranged around the second inclined portion 51A it may become difficult to sufficiently ensure the width W 1 of the sealing surface 46a. In such a case, the sealing performance of the liquid gasket 32 disposed between the first casing portion 41 and the second casing portion 42 may be lowered.
  • the width W 3 of the second inclined portion 51A by a first inclined portion 49A, 1.5 times or more of 50A width W 2 of 2.5 times or less, the first casing portion 41 second The sufficient sealing performance of the liquid gasket 32 disposed between the casing portion 42 and the casing portion 42 can be ensured, and the inhibition of the flow of the heat medium flowing through the communication portion 43 (inhibition due to the liquid gasket 32) can be suppressed.
  • the lid portion 47 is configured to be separable from the substrate housing portion 45.
  • the lid 47 is fixed with screws.
  • the lid portion 47 faces the control board 37 disposed in the board housing space 45A.
  • the second casing part 42 includes a flow path forming part 53 and a lid part 54.
  • the flow path forming portion 53 includes a plate-like member 53A, a plurality of fins 53B, at least one opening and recess (not shown), and a second communication port 55.
  • the plate-like member 53A has a second seal surface 53a.
  • the second seal surface 53a is a flat surface facing the first seal surface 46a.
  • the second seal surface 53a faces the first inclined surfaces 49a and 50a and the second inclined surface 51a in the Z direction.
  • the liquid gasket 32 is disposed on the second seal surface 53a.
  • the plurality of fins 53B are provided on the plate member 53A on the side facing the lid portion 54.
  • the plurality of fins 53 ⁇ / b> B project in a direction toward the lid portion 54.
  • a second heat medium flow path 56 is defined between the side of the plate-like member 53 ⁇ / b> A where the plurality of fins 53 ⁇ / b> B are provided and the lid portion 54.
  • the second heat medium flow path 56 is a plurality of parallel flow paths through which the heat medium flows.
  • the second heat medium flow path 56 communicates with the heat medium inlet 45B and the heat medium outlet 45C.
  • the second heat medium flow path 56 is disposed so as to face the other surface of the PTC heater 33.
  • the opening is provided so as to penetrate the plate-like member 53A.
  • One end of the opening is adjacent to the second seal surface 53a.
  • the first inclined portion 49A described above is not provided at one end of the opening. That is, the periphery of the opening is surrounded by the second seal surface 53a.
  • the recess is formed on the second seal surface 53a side of the plate-like member 53A. One end of the recess is adjacent to the second seal surface 53a.
  • the first inclined portion 50A described above is not provided at one end of the recess. That is, the periphery of the recess is surrounded by the second seal surface 53a.
  • the second communication port 55 is provided in the plate-like member 53A and extends in the Z direction. One end of the second communication port 55 is exposed from the second seal surface 53a. One end of the second communication port 55 faces one end of the first communication port 51.
  • the second communication port 55 communicates with the second heat medium flow channel 56 and the first communication port 51.
  • the second communication port 55 and the first communication port 51 constitute a communication part 43.
  • the second inclined portion 51A described above is not provided at one end of the second communication port 55. That is, the periphery of one end of the second communication port 55 is surrounded by the second seal surface 53a.
  • the communication part 43 is partitioned in the casing 31.
  • the communication portion 43 is configured to include first and second communication ports 51 and 55 arranged in the Z direction.
  • the communication part 43 functions as a communication path through which the heat medium moving between the first heat medium flow path 48 and the second heat medium flow path 56 flows.
  • the liquid gasket 32 is provided between the first seal surface 46 a and the second seal surface 53 a and seals between the first casing portion 41 and the second casing portion 42.
  • a portion of the liquid gasket 32 that protrudes from between the first seal surface 46a and the second seal surface 53a is between the first inclined surfaces 49a, 50a and the second seal surface 53a or the second seal surface 53a. It arrange
  • liquid gasket 32 for example, an organic solvent type liquid gasket, a solventless type liquid gasket, an aqueous type liquid gasket, or the like can be used.
  • organic solvent type liquid gasket it is possible to use, for example, a modified alkyd type, a fiber ester type, or a synthetic rubber type liquid gasket.
  • solventless liquid gasket it is possible to use, for example, phenol-based, modified ester-based, silicone-based, acrylic-based liquid gaskets.
  • an aqueous type liquid gasket for example, an aqueous acrylic liquid gasket can be used.
  • the PTC heater 33 is accommodated in the heater accommodating portion 46C.
  • the PTC heater 33 is disposed between the first heat medium flow path 48 and the second heat medium flow path 56.
  • a PTC element 61, a first electrode plate 62, and a second electrode plate 63 are included.
  • the PTC element 61 is an element having a rectangular plate shape, and is disposed between the first electrode plate 62 and the second electrode plate 63.
  • the first electrode plate 62 is provided on one surface of the PTC element 61 facing the plate-like member 46A.
  • the first electrode plate 62 has a plate-like electrode plate body and three first terminals 62A.
  • the electrode plate main body constituting the first electrode plate 62 is divided into three.
  • the second terminal 62A is provided on the outer periphery of each divided electrode plate body.
  • the first terminal 62 ⁇ / b> A is provided on the outer peripheral portion of the electrode plate main body constituting the first electrode plate 62.
  • the first terminal 62A is screwed to the control board 37 with a first screw 38. Thus, the first terminal 62A is electrically connected to the control board 37.
  • the second electrode plate 63 is provided on the other surface of the PTC element 61 facing the flow path forming portion 53.
  • the second electrode plate 63 has a plate-shaped electrode plate main body and one second terminal 63A.
  • the second terminal 63 ⁇ / b> A is provided on the outer peripheral portion of the electrode plate main body constituting the second electrode plate 63.
  • the second terminal 63A is screwed to the control board 37 by a second screw 39. Thus, the second terminal 63A is electrically connected to the control board 37.
  • the PTC heater 33 configured as described above heats the heat medium flowing through the first and second heat medium flow paths 48 and 56.
  • the heat medium heated by the PTC heater 33 is introduced into the radiator 16 through the inlet 16 ⁇ / b> A of the radiator 16.
  • An insulating plate (not shown) is provided between the PTC heater 33 and the flow path forming portions 46 and 53. By this insulating plate, the PTC heater 33 and the flow path forming portions 46 and 53 are insulated.
  • the insulating member 34 includes a frame body 73, a first guide portion 75, and a second guide portion 76.
  • the frame 73 has a shape surrounding the side surface of the structure including the electrode plate main body of the first electrode plate 62, the PTC element 61, and the electrode plate main body of the second electrode plate 63.
  • the frame body 73 is disposed between the flow path forming portion 46 and the flow path forming portion 53 in a state of surrounding the electrode plate main bodies of the first electrode plates 62 and 63 and the side surface of the laminated structure including the PTC elements 61. Has been.
  • the outer peripheral surface of the frame 73 is in contact with the inner surface of the heater accommodating portion 46C.
  • Three first guide portions 75 are provided on the long side of the frame body 73.
  • the two first guide portions 75 are provided adjacent to each other.
  • the remaining one first guide portion 75 is provided at a position separated from the other two first guide portions 75.
  • the first guide portion 75 has a first opening 75A extending in the Z direction.
  • the first terminal 62A is inserted into the first opening 75A.
  • the first guide portion 75 has a shape surrounding the first terminal 62A.
  • One second guide portion 76 is provided on the long side of the frame 73 provided with the first guide portion 75.
  • the second guide portion 76 is disposed adjacent to one first guide portion 75.
  • the second guide portion 76 has a second opening 76A extending in the Z direction.
  • the second guide portion 76 has a second terminal 63A inserted therein.
  • the second guide portion 76 has a shape surrounding the second terminal 63A.
  • the insulating member 34 configured as described above, it is possible to insulate between the conductor disposed around the side surface of the PTC heater 33 and the side surface of the PTC heater 33, and the PTC heater 33 with respect to the control board 37. Positioning can be performed.
  • the control board 37 is housed in the board housing space 45A.
  • the control board 37 includes a board body 66, electronic components 68 and 69, a first connection part (not shown), and a second connection part (not shown).
  • the substrate body 66 is fixed to the substrate housing portion 45.
  • the substrate body 66 has a first surface 66a and a second surface 66b.
  • the first surface 66 a is a surface facing the lid portion 47.
  • the second surface 66b is a surface disposed on the opposite side of the first surface 66a.
  • the second surface 66 b is a surface facing the substrate housing portion 45.
  • the substrate body 66 has a configuration in which circuit patterns (control circuit patterns, power supply circuit patterns, etc.) are formed on both surfaces of a plate-like insulating substrate.
  • the electronic component 68 is an electronic component that generates heat more easily than the electronic component 69.
  • the electronic component 68 is provided on the second surface 66 b of the substrate body 66.
  • the electronic component 68 is electrically connected to the board body 66.
  • Examples of the electronic component 68 include an IGBT (Insulated Gate Bipolar Transistor) and a FET (Field Effect Transistor).
  • the electronic component 69 is provided on the first surface 66 a of the substrate body 66.
  • the electronic component 69 is electrically connected to the board body 66.
  • the first connection portion is provided on the second surface 66b of the substrate body 66.
  • the first connection portion is electrically connected to the substrate body 66.
  • a terminal constituting the first electrode plate 62 is connected to the first connection portion.
  • the second connection portion is provided on the second surface 66 b of the substrate body 66.
  • the second connection portion is electrically connected to the substrate body 66.
  • a terminal constituting the second electrode plate 63 is connected to the second connection portion.
  • the second inclined portion 51A including the second inclined surface 51a that expands the diameter of one end of the first communication port 51 is provided, and the first communication port 51 a second inclined portion 51A width W 3 of which is provided at one end, by widely least one of the first inclined portion 49A provided at one end of the opening 49 and the recess 50, than the width W 2 of 50A
  • the first sealing surface 46a and the second sealing surface 53a It is possible to arrange the liquid gasket 32 protruding from between the two.
  • the vehicle air conditioner 10 of the present embodiment is provided with the heat medium heating device 25, the blower 13 that circulates the outside air or the air in the vehicle interior, and the cooling that cools the outside air or air provided downstream of the blower 13.
  • the first heat medium flow path 48 and the second heat medium are provided by the heat exchanger 15 and the radiator 16 that is provided downstream of the cooler 15 and in which the heat medium heated by the PTC heater 33 is circulated. Inhibition of the flow of the heat medium flowing through the communication portion 43 communicating with the flow path 56 can be suppressed.
  • first and second inclined portions 49A, 50A, 51A are provided on the first seal surface 46a side of the first casing portion 41 .
  • the first and second inclined portions 49 ⁇ / b> A, 50 ⁇ / b> A, 51 ⁇ / b> A may be provided on the second seal surface 53 a side of the second casing portion 42.
  • the first inclined portions 49A and 50A are provided so as to surround at least one opening portion and one end of the concave portion arranged on the second seal surface 53a side of the flow path forming portion 53, and the second inclined portion 51A is provided. You may provide so that the end of the 2nd communication part 55 may be enclosed. In this case, the same effects as those of the heat medium heating device 25 and the vehicle air conditioner 10 of the present embodiment can be obtained.
  • the present invention is applicable to a heat medium heating device and a vehicle air conditioner including the heat medium heating device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

A second inclined part (51A) including a second inclined surface (51a) for increasing the diameter of one end of a first communicating port (51) is provided, and the width of the second inclined part (51A) provided to one end of the first communicating port (51) is made larger than the width of first inclined parts (49A, 50A) for increasing the diameter of an opening (49) and a recess (50).

Description

熱媒体加熱装置、及び車両用空調装置Heat medium heating device and vehicle air conditioner
　本発明は、熱媒体加熱装置、及び該熱媒体加熱装置を備えた車両用空調装置に関する。
　本願は、２０１７年２月１７日に、日本に出願された特願２０１７－０２７９３１号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a heat medium heating device and a vehicle air conditioner including the heat medium heating device.
This application claims priority based on Japanese Patent Application No. 2017-027931 filed in Japan on February 17, 2017, the contents of which are incorporated herein by reference.
　従来の車両用空調装置を構成する熱媒体加熱装置には、ＰＴＣ（Ｐｏｓｉｔｉｖｅ　Ｔｅｍｐｅｒａｔｕｒｅ　Ｃｏｅｆｆｉｃｉｅｎｔ）素子を発熱要素とするＰＴＣヒータを備えたものがある。 2. Description of the Related Art Conventional heat medium heating devices constituting vehicle air conditioners include a PTC heater having a PTC (Positive Temperature Coefficient) element as a heating element.
　特許文献１には、第１の熱媒体流路が形成された第１のケーシング部と第２の熱媒体流路が形成された第２のケーシング部との間にＰＣＴヒータが配置された熱媒体加熱装置が開示されている。 Patent Document 1 discloses a heat in which a PCT heater is disposed between a first casing part in which a first heat medium flow path is formed and a second casing part in which a second heat medium flow path is formed. A medium heating device is disclosed.
　また、特許文献１には、第１及びの連通口を含み、第１の熱媒体流路と第２の熱媒体流路との間を熱媒体が移動する連通部が開示されている。
　第１の連通口は、第１のケーシング部に設けられ、第１の熱媒体流路と連通されている。第２の連通口は、第２のケーシング部のうち、第１の連通口と対向する部分に設けられ、第２の熱媒体流路と連通されている。 Patent Document 1 discloses a communication portion that includes a first communication port and a heat medium that moves between a first heat medium flow channel and a second heat medium flow channel.
The first communication port is provided in the first casing part and communicates with the first heat medium flow path. The second communication port is provided in a portion of the second casing portion that faces the first communication port and communicates with the second heat medium flow path.
特開２０１１－２２５０７４号公報JP 2011-225074 A
　上記構成とされた熱媒体加熱装置では、第１のケーシング部と第２のケーシング部との間に液状ガスケットを挟み込むことで、第１のケーシング部と第２のケーシング部との間をシールすることが行われている。 In the heat medium heating device configured as described above, a liquid gasket is sandwiched between the first casing portion and the second casing portion, thereby sealing between the first casing portion and the second casing portion. Things have been done.
　このように、液状ガスケットを用いて、第１のケーシング部と第２のケーシング部との間をシールする場合、連通部の内側に液状ガスケットがはみ出して、連通部の開口径が狭くなる可能性があり、連通部を通過する熱媒体の流れが阻害される可能性があった。 In this way, when the gap between the first casing portion and the second casing portion is sealed using the liquid gasket, the liquid gasket may protrude inside the communication portion, and the opening diameter of the communication portion may be reduced. There is a possibility that the flow of the heat medium passing through the communication portion is obstructed.
　そこで、本発明は、第１の熱媒体流路と第２の熱媒体流路とを連通させる連通部を流れる熱媒体の流れの阻害を抑制可能な熱媒体加熱装置、及び車両用空調装置を提供することを目的とする。 Therefore, the present invention provides a heat medium heating device and a vehicle air conditioner capable of suppressing the obstruction of the flow of the heat medium flowing through the communication portion that communicates the first heat medium flow channel and the second heat medium flow channel. The purpose is to provide.
　上記課題を解決するため、本発明の一態様に係る熱媒体加熱装置は、平面とされた第１のシール面、熱媒体が流れる第１の熱媒体流路、及び該第１の熱媒体流路と連通され、かつ一端が第１のシール面と隣接する第１の連通口を含む第１のケーシング部と、前記第１のシール面と対向する平面とされた第２のシール面、前記熱媒体が流れる第２の熱媒体流路、及び該第２の熱媒体流路と連通され、前記第２のシール面と隣接する一端が前記第１の連通口の一端と連通された第２の連通口を含む第２のケーシング部と、前記第１の連通口及び前記第２の連通口を含む連通部と、前記第１及び第２のケーシング部に設けられた少なくとも１つの開口部及び凹部と、を有するケーシングと、前記ケーシング内に収容され、前記第１の熱媒体流路と前記第２の熱媒体流路との間に配置されたＰＴＣヒータと、前記第１のシール面と前記第２のシール面との間に設けられた液状ガスケットと、を備え、前記開口部及び凹部の一端には、前記第１のシール面または前記第２のシール面に対して傾斜するとともに、前記開口部または前記凹部を拡径させる第１の傾斜面を含む第１の傾斜部が設けられており、前記第１及び第２の連通口の一端のうち、一方の一端には、前記第１のシール面または前記第２のシール面に対して傾斜するとともに、前記第１の連通口または前記第２の連通口の一端を拡径させる第２の傾斜面５１ａを含む第２の傾斜部が設けられており、前記第２の傾斜部の幅は、前記第１の傾斜部の幅よりも広い。 In order to solve the above-described problem, a heating medium heating device according to one embodiment of the present invention includes a flat first sealing surface, a first heating medium channel through which a heating medium flows, and the first heating medium flow. A first casing part including a first communication port which is in communication with a path and has one end adjacent to the first sealing surface; a second sealing surface which is a flat surface facing the first sealing surface; A second heat medium flow path through which the heat medium flows, and a second heat flow path that communicates with the second heat medium flow path and that has one end adjacent to the second sealing surface communicated with one end of the first communication port. A second casing portion including the communication port, a communication portion including the first communication port and the second communication port, at least one opening provided in the first and second casing portions, and A casing having a recess, and the first heat medium flow path accommodated in the casing, A PTC heater disposed between the second heat medium flow path and a liquid gasket provided between the first seal surface and the second seal surface, the opening and One end of the recess is provided with a first inclined portion including a first inclined surface that is inclined with respect to the first seal surface or the second seal surface and expands the diameter of the opening or the recess. One end of the first and second communication ports is inclined with respect to the first seal surface or the second seal surface, and the first communication port Alternatively, a second inclined portion including a second inclined surface 51a that expands one end of the second communication port is provided, and the width of the second inclined portion is the width of the first inclined portion. Wider than.
　本発明によれば、第１の連通口の一端に設けられた第２の傾斜部の幅を、少なくとも１つの開口部及び凹部の一端に設けられた第１の傾斜部の幅よりも広くすることで、第２の傾斜面と対向する第２のシール面と第２の傾斜面との間に形成される隙間に、第１のシール面と第２のシール面との間からはみ出した液状ガスケットを配置させることが可能となる。
　これにより、連通部の内側への液状ガスケットのはみ出しが抑制され、連通部の径が狭められることを抑制可能となる。よって、連通部を流れる熱媒体の流れの阻害を抑制（具体的には、圧力損失の増大の抑制や、第１及び第２の熱媒体流路への熱媒体の分配の悪化を抑制）することができる。 According to the present invention, the width of the second inclined portion provided at one end of the first communication port is made wider than the width of the first inclined portion provided at one end of the at least one opening and the recess. Thus, the liquid that protrudes from between the first seal surface and the second seal surface in a gap formed between the second seal surface and the second inclined surface facing the second inclined surface. It becomes possible to arrange a gasket.
Thereby, the protrusion of the liquid gasket to the inside of the communication part is suppressed, and it is possible to suppress the diameter of the communication part from being narrowed. Therefore, inhibition of the flow of the heat medium flowing through the communication portion is suppressed (specifically, suppression of increase in pressure loss and deterioration of distribution of the heat medium to the first and second heat medium flow paths) are suppressed. be able to.
　また、上記本発明の一態様に係る熱媒体加熱装置において、前記第２の傾斜部の幅は、前記第１の傾斜部の幅の１．５倍以上２．５倍以下であってもよい。 Further, in the heat medium heating device according to one aspect of the present invention, the width of the second inclined portion may be not less than 1.5 times and not more than 2.5 times the width of the first inclined portion. .
　第２の傾斜部の幅が、第１の傾斜部の幅の１．５倍よりも小さいと、第２のシール面または第１のシール面と第２の傾斜面との間に形成される隙間の体積が小さくなる。
　これにより、第１のシール面と第２のシール面との間からはみ出した液状ガスケットを上記隙間に留めることが困難となり、液状ガスケットが連通部の内側にはみ出す可能性が高くなる。 When the width of the second inclined portion is smaller than 1.5 times the width of the first inclined portion, it is formed between the second seal surface or the first seal surface and the second inclined surface. The volume of the gap is reduced.
As a result, it becomes difficult to keep the liquid gasket protruding from between the first seal surface and the second seal surface in the gap, and the liquid gasket is more likely to protrude inside the communicating portion.
　一方、第２の傾斜部の幅が、第１の傾斜部の幅の２．５倍よりも大きいと、第２の傾斜部の周囲に配置される第１のシール面または第２のシール面の幅を十分に確保することが困難となる。このような場合、第１のケーシング部と第２のケーシング部との間に配置された液状ガスケットのシール性能が低下する可能性があった。 On the other hand, when the width of the second inclined portion is larger than 2.5 times the width of the first inclined portion, the first seal surface or the second seal surface disposed around the second inclined portion. It is difficult to ensure a sufficient width. In such a case, the sealing performance of the liquid gasket arranged between the first casing part and the second casing part may be lowered.
　したがって、第２の傾斜部の幅を、第１の傾斜部の幅の１．５倍以上２．５倍以下とすることで、第１のケーシング部と第２のケーシング部との間に配置される液状ガスケットのシール性能を十分に確保した上で、連通部を流れる熱媒体の流れの阻害（液状ガスケットに起因する阻害）を抑制できる。 Accordingly, the width of the second inclined portion is set to be 1.5 to 2.5 times the width of the first inclined portion, so that the second inclined portion is disposed between the first casing portion and the second casing portion. It is possible to suppress the obstruction of the flow of the heat medium flowing through the communicating portion (inhibition due to the liquid gasket) while sufficiently securing the sealing performance of the liquid gasket.
　また、本発明の一態様に係る車両用空調装置は、上記熱媒体加熱装置と、外気または車室内の空気を循環させるブロアと、前記ブロアの下流側に設けられ、前記外気または前記空気を冷却する冷却器と、前記冷却器の下流側に設けられ、前記ＰＴＣヒータにより加熱された前記熱媒体が循環される放熱器と、を備えてもよい。 An air conditioner for a vehicle according to an aspect of the present invention is provided with the heat medium heating device, a blower that circulates outside air or air in the passenger compartment, and a downstream side of the blower, and cools the outside air or the air. And a radiator that is provided on the downstream side of the cooler and in which the heat medium heated by the PTC heater is circulated.
　このように、車両用空調装置が熱媒体加熱装置を含むことで、第１の熱媒体流路と第２の熱媒体流路とを連通する連通部を流れる熱媒体の流れの阻害を抑制できる。 As described above, since the vehicle air conditioner includes the heat medium heating device, it is possible to suppress the obstruction of the flow of the heat medium that flows through the communication portion that communicates the first heat medium flow path and the second heat medium flow path. .
　本発明によれば、第１の熱媒体流路と第２の熱媒体流路とを連通する連通部を流れる熱媒体の流れの阻害を抑制できる。 According to the present invention, it is possible to suppress the obstruction of the flow of the heat medium that flows through the communication portion that communicates the first heat medium flow path and the second heat medium flow path.
本発明の実施形態に係る車両用空調装置の概略構成を模式的に示す図である。It is a figure showing typically the schematic structure of the air-conditioner for vehicles concerning the embodiment of the present invention. 図１に示す熱媒体加熱装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the heat medium heating apparatus shown in FIG. 図２に示す熱媒体加熱装置のＡ１－Ａ２線方向の模式的な断面図である。FIG. 3 is a schematic cross-sectional view of the heat medium heating device shown in FIG. 2 in the A 1 -A 2 line direction. 図３に示す熱媒体加熱装置のＢ１－Ｂ２線方向の模式的な断面図である。FIG. 4 is a schematic cross-sectional view in the B 1 -B 2 line direction of the heat medium heating device shown in FIG. 3. 図３に示す熱媒体加熱装置のＣ１－Ｃ２線方向の模式的な断面図である。It is a schematic cross-sectional view of a C 1 -C 2 along the line of the heat medium heating apparatus shown in FIG. 図３に示す熱媒体加熱装置のうち、領域Ｄで囲まれた部分を拡大した断面図である。It is sectional drawing to which the part enclosed by the area | region D among the heat carrier heating apparatuses shown in FIG. 3 was expanded. 第１のケーシング部、絶縁部材、及びＰＴＣヒータの平面図である。It is a top view of a 1st casing part, an insulating member, and a PTC heater. 図６に示す構造体の領域Ｅで囲まれた部分を拡大した断面図である。It is sectional drawing to which the part enclosed by the area | region E of the structure shown in FIG. 6 was expanded.
　以下、図面を参照して本発明を適用した実施形態について詳細に説明する。 Hereinafter, an embodiment to which the present invention is applied will be described in detail with reference to the drawings.
　（実施形態）
　図１を参照して、本実施形態に係る車両用空調装置１０について説明する。図１に示す矢印は、外気または車室内の空気の流れ方向を示している。
　車両用空調装置１０は、例えば、ハイブリッド車両や電動車両等に適用可能な空調装置である。 (Embodiment)
With reference to FIG. 1, the vehicle air conditioner 10 which concerns on this embodiment is demonstrated. The arrows shown in FIG. 1 indicate the flow direction of the outside air or the air in the passenger compartment.
The vehicle air conditioner 10 is an air conditioner applicable to, for example, a hybrid vehicle or an electric vehicle.
　図１を参照するに、車両用空調装置１０は、ハウジング１１と、ブロア１３と、冷却器１５と、熱媒体循環回路１９を構成する放熱器１６と、エアミックスダンパ１７と、熱媒体加熱装置２５を含む熱媒体循環回路１９と、を有する。 Referring to FIG. 1, a vehicle air conditioner 10 includes a housing 11, a blower 13, a cooler 15, a radiator 16 constituting a heat medium circulation circuit 19, an air mix damper 17, and a heat medium heating device. And a heat medium circulation circuit 19 including 25.
　ハウジング１１は、取り込み口１１Ａと、吐出口１１Ｂと、流路１１Ｃと、とされている。取り込み口１１Ａは、外気または車室内の空気（以下、単に「空気」という）を流路１１Ｃ内に取り込むための開口部である。
　吐出口１１Ｂは、流路１１Ｃを通過した空気を車室内に設けられた複数の吹き出し口と接続されている。流路１１Ｃは、空気が流れる経路であり、ハウジング１１内に区画されている。 The housing 11 includes an intake port 11A, a discharge port 11B, and a flow path 11C. The intake port 11A is an opening for taking outside air or air in the vehicle interior (hereinafter simply referred to as “air”) into the flow path 11C.
The discharge port 11B is connected to a plurality of outlets provided in the passenger compartment for the air that has passed through the flow path 11C. The flow path 11 </ b> C is a path through which air flows, and is partitioned in the housing 11.
　ブロア１３は、ハウジング１１内の取り込み口１１Ａ付近に設けられている。ブロア１３は、取り込み口１１Ａから空気を吸い込み、吸い込んだ空気をブロア１３の下流側に圧送する。 The blower 13 is provided in the vicinity of the intake port 11A in the housing 11. The blower 13 sucks air from the intake port 11 </ b> A and pumps the sucked air to the downstream side of the blower 13.
　冷却器１５は、ブロア１３の下流側に位置するハウジング１１内に設けられている。冷却器１５は、流路１１Ｃの一部を塞ぐように配置されている。冷却器１５は、図示していない圧縮機、凝縮器、及び膨張弁とともに冷媒回路を構成する。冷却器１５は、膨張弁で断熱膨張された冷媒を蒸発させることで、冷却器１５を通過する空気を冷却し、冷却した空気を冷却器１５の下流側に供給する。 The cooler 15 is provided in the housing 11 located on the downstream side of the blower 13. The cooler 15 is disposed so as to block a part of the flow path 11C. The cooler 15 constitutes a refrigerant circuit together with a compressor, a condenser, and an expansion valve (not shown). The cooler 15 evaporates the refrigerant adiabatically expanded by the expansion valve, thereby cooling the air passing through the cooler 15 and supplying the cooled air to the downstream side of the cooler 15.
　放熱器１６は、循環ライン２１、タンク２３、ポンプ２４、エンジン（図示せず）、及び熱媒体加熱装置２５とともに熱媒体循環回路１９を構成している。放熱器１６は、冷却器１５の下流側に位置する流路１１Ｃに設けられている。 The heat radiator 16 constitutes a heat medium circulation circuit 19 together with the circulation line 21, the tank 23, the pump 24, the engine (not shown), and the heat medium heating device 25. The radiator 16 is provided in the flow path 11 </ b> C located on the downstream side of the cooler 15.
　放熱器１６は、循環ライン２１と接続された導入口１６Ａ及び導出口１６Ｂを有する。導入口１６Ａには、循環ライン２１により熱媒体加熱装置２５を経由した熱媒体が導入される。放熱器１６内を通過した熱媒体は、導出口１６Ｂから循環ライン２１に導出される。
　放熱器１６は、冷却器１５から冷却された空気と熱媒体とを熱交換させることで空気を加熱し、加熱した空気を下流側に供給する。 The radiator 16 has an inlet 16A and an outlet 16B connected to the circulation line 21. A heat medium via the heat medium heating device 25 is introduced into the introduction port 16A through the circulation line 21. The heat medium that has passed through the radiator 16 is led out to the circulation line 21 from the outlet 16B.
The radiator 16 heats the air by exchanging heat between the air cooled from the cooler 15 and the heat medium, and supplies the heated air to the downstream side.
　エアミックスダンパ１７は、冷却器１５と放熱器１６との間に位置する流路１１Ｃに設けられている。エアミックスダンパ１７は、放熱器１６を通過した空気の量と放熱器１６をバイパスして流れる空気の量との割合を調整するためのダンパである。エアミックスダンパ１７は、エアミックスダンパ１７の下流でミックスされる空気の温度を調節する機能を有する。 The air mix damper 17 is provided in the flow path 11C located between the cooler 15 and the radiator 16. The air mix damper 17 is a damper for adjusting the ratio between the amount of air that has passed through the radiator 16 and the amount of air that flows by bypassing the radiator 16. The air mix damper 17 has a function of adjusting the temperature of air mixed downstream of the air mix damper 17.
　熱媒体循環回路１９は、放熱器１６、循環ライン２１、タンク２３、ポンプ２４、エンジン（図示せず）、及び熱媒体加熱装置２５を含んだ構成とされている。
　熱媒体循環回路１９は、例えば、ハイブリッド運転時等、熱媒体であるエンジン冷却水の温度がさほど上昇しない時に、熱媒体加熱装置２５によってエンジン冷却水を加熱する。そして、加熱したエンジン冷却水をポンプ２４により循環ライン２１により循環させることで、ハウジング１１内にて放熱器１６を通過する空気を加温する。 The heat medium circulation circuit 19 includes a radiator 16, a circulation line 21, a tank 23, a pump 24, an engine (not shown), and a heat medium heating device 25.
The heat medium circulation circuit 19 heats the engine coolant with the heat medium heater 25 when the temperature of the engine coolant that is the heat medium does not increase so much, for example, during hybrid operation. And the air which passes the heat radiator 16 in the housing 11 is heated by circulating the heated engine-cooling water with the circulation line 21 with the pump 24. FIG.
　循環ライン２１は、ハウジング１１の外側に配置されている。循環ライン２１は、放熱器１６、タンク２３、ポンプ２４、エンジン（図示せず）、及び熱媒体加熱装置２５を接続している。循環ライン２１は、熱媒体を循環させるためのラインである。 The circulation line 21 is disposed outside the housing 11. The circulation line 21 connects the radiator 16, the tank 23, the pump 24, the engine (not shown), and the heat medium heating device 25. The circulation line 21 is a line for circulating the heat medium.
　ハイブリッド車両に車両用空調装置１０を適用する場合、上記熱媒体としては、例えば、ハイブリッド車両のエンジン冷却水を用いることが可能である。また、エンジンを備えない電動車両に車両用空調装置１０を適用する場合、上記熱媒体としては、例えば、ブライン等を用いることが可能である。 When the vehicle air conditioner 10 is applied to a hybrid vehicle, for example, engine cooling water of the hybrid vehicle can be used as the heat medium. Further, when the vehicle air conditioner 10 is applied to an electric vehicle that does not include an engine, for example, brine or the like can be used as the heat medium.
　タンク２３は、導出口１６Ｂ側に位置する循環ライン２１に設けられている。タンク２３内には、熱媒体が貯留されている。 The tank 23 is provided in the circulation line 21 located on the outlet 16B side. A heat medium is stored in the tank 23.
　ポンプ２４は、タンク２３の下流側に位置する循環ライン２１に設けられている。ポンプ２４は、タンク２３内の熱媒体を熱媒体加熱装置２５に供給する。 The pump 24 is provided in the circulation line 21 located on the downstream side of the tank 23. The pump 24 supplies the heat medium in the tank 23 to the heat medium heating device 25.
　熱媒体加熱装置２５は、ポンプ２４と放熱器１６との間に位置する循環ライン２１に設けられている。 The heat medium heating device 25 is provided in the circulation line 21 located between the pump 24 and the radiator 16.
　図２～図８を参照して、熱媒体加熱装置２５の構成について説明する。図２～図６、及び図８において、Ｘ方向は熱媒体加熱装置２５の長手方向、Ｙ方向はＸ方向に対して直交する熱媒体加熱装置２５の短手方向、Ｚ方向はＸ－Ｙ平面（Ｘ方向及びＹ方向が通過する仮想平面）に対して直交するＰＴＣヒータ３３及び制御基板３７の積層方向を示している。 The configuration of the heat medium heating device 25 will be described with reference to FIGS. 2 to 6 and 8, the X direction is the longitudinal direction of the heat medium heating device 25, the Y direction is the short direction of the heat medium heating device 25 perpendicular to the X direction, and the Z direction is the XY plane. The stacking direction of the PTC heater 33 and the control board 37 perpendicular to (the virtual plane through which the X direction and the Y direction pass) is shown.
　図２～図８において、同一構成部分には同一符号を付す。図３に示す矢印は、熱媒体が流れる方向を示している。また、図５に示す矢印は、熱媒体が２つに分岐して流れる状態を示している。
　図７では、開口部４９の一例として、ＰＴＣヒータ３３の第１及び第２の電極板６２，６３を構成する第１及び第２の端子６２Ａ，６３Ａが挿入される開口部を図示する。
　さらに、図８において、Ｗ１は第２の傾斜部５１Ａの周囲に配置された第１のシール面４６ａの幅（以下、「幅Ｗ１」という）、Ｗ２は第１の傾斜部５０Ａの幅（以下、「幅Ｗ２」という）、Ｗ３は第２の傾斜部５１Ａの幅（以下、「幅Ｗ３」という）をそれぞれ示している。 2 to 8, the same components are denoted by the same reference numerals. The arrows shown in FIG. 3 indicate the direction in which the heat medium flows. Moreover, the arrow shown in FIG. 5 has shown the state into which a heat medium branches and flows into two.
In FIG. 7, as an example of the opening 49, an opening into which the first and second terminals 62A and 63A constituting the first and second electrode plates 62 and 63 of the PTC heater 33 are inserted is illustrated.
Further, in FIG. 8, W 1 is the width of the first sealing surface 46a which is arranged around the second inclined portion 51A (hereinafter, referred to as "width W 1 '), W 2 is the first inclined portion 50A Width (hereinafter referred to as “width W 2 ”) and W 3 indicate the width of the second inclined portion 51A (hereinafter referred to as “width W 3 ”), respectively.
　熱媒体加熱装置２５は、ケーシング３１と、液状ガスケット３２と、ＰＴＣヒータ３３と、絶縁部材３４と、制御基板３７と、を有する。
　ケーシング３１は、第１の熱媒体流路４８を含む第１のケーシング部４１と、第２の熱媒体流路５６を含む第２のケーシング部４２と、第１及び第２の熱媒体流路４８，５６とを連通させる連通部４３と、を有する。 The heat medium heating device 25 includes a casing 31, a liquid gasket 32, a PTC heater 33, an insulating member 34, and a control board 37.
The casing 31 includes a first casing part 41 including a first heat medium flow path 48, a second casing part 42 including a second heat medium flow path 56, and first and second heat medium flow paths. And a communication portion 43 for communicating with 48 and 56.
　第１のケーシング部４１は、第２のケーシング部４２とは、別体とされている。第１のケーシング部４１は、基板収容部４５と、流路形成部４６と、蓋部４７と、を有する。
　基板収容部４５は、流路形成部４６と蓋部４７との間に設けられている。基板収容部４５は、基板収容空間４５Ａと、熱媒体導入口４５Ｂと、熱媒体導出口４５Ｃと、を有する。基板収容空間４５Ａは、制御基板３７を収容している。 The first casing part 41 is separate from the second casing part 42. The first casing part 41 includes a substrate housing part 45, a flow path forming part 46, and a lid part 47.
The substrate housing part 45 is provided between the flow path forming part 46 and the lid part 47. The substrate housing part 45 includes a substrate housing space 45A, a heat medium inlet 45B, and a heat medium outlet 45C. The substrate housing space 45A houses the control board 37.
　熱媒体導入口４５Ｂは、熱媒体を循環する循環ライン２１と接続されている。熱媒体導入口４５Ｂは、ケーシング３１内に形成された第１及び第２の熱媒体流路４８，５６に熱媒体を導入する。 The heat medium inlet 45B is connected to a circulation line 21 that circulates the heat medium. The heat medium introduction port 45 </ b> B introduces the heat medium into the first and second heat medium flow paths 48 and 56 formed in the casing 31.
　熱媒体導出口４５Ｃは、循環ライン２１と接続されている。熱媒体導出口４５Ｃは、ケーシング３１内に設けられた第１及び第２の熱媒体流路４８，５６を通過した熱媒体を循環ライン２１に導出させる。 The heat medium outlet 45C is connected to the circulation line 21. The heat medium outlet 45C guides the heat medium that has passed through the first and second heat medium flow paths 48 and 56 provided in the casing 31 to the circulation line 21.
　流路形成部４６は、板状部材４６Ａと、複数のフィン４６Ｂと、少なくとも１つの開口部４９及び凹部５０と、第１の連通口５１と、を有する。
　なお、開口部４９及び凹部５０は、それぞれ１つ以上設けられていればよい。 The flow path forming unit 46 includes a plate-like member 46 </ b> A, a plurality of fins 46 </ b> B, at least one opening 49 and a recess 50, and a first communication port 51.
One or more openings 49 and recesses 50 may be provided.
　板状部材４６Ａは、第１のシール面４６ａと、ヒータ収容部４６Ｃと、を有する。第１のシール面４６ａは、第２のケーシング部４２と対向する平面である。第１のシール面４６ａは、第２のケーシング部４２を構成する第２のシール面５３ａと対向する面である。
　第１のシール面４６ａには、シール部材である液状ガスケット３２が設けられている。第１のシール面４６ａの幅Ｗ１は、適宜設定することが可能である。 The plate-like member 46A has a first seal surface 46a and a heater accommodating portion 46C. The first seal surface 46 a is a plane that faces the second casing portion 42. The first seal surface 46 a is a surface facing the second seal surface 53 a constituting the second casing part 42.
A liquid gasket 32 as a seal member is provided on the first seal surface 46a. The width W1 of the first seal surface 46a can be set as appropriate.
　ヒータ収容部４６Ｃは、ＰＴＣヒータ３３が収容される凹部５０である。ＰＴＣヒータ３３は、ヒータ収容部４６Ｃに収容されることで、Ｚ方向において第１の熱媒体流路４８と対向している。 The heater accommodating portion 46C is a recess 50 in which the PTC heater 33 is accommodated. The PTC heater 33 is accommodated in the heater accommodating portion 46 </ b> C so as to face the first heat medium flow path 48 in the Z direction.
　複数のフィン４６Ｂは、板状部材４６Ａのうち、基板収容部４５と対向する側に設けられている。複数のフィン４６Ｂは、基板収容部４５に向かう方向に突出している。
　板状部材４６Ａのうち、複数のフィン４６Ｂが設けられた側と基板収容部４５との間には、第１の熱媒体流路４８が区画されている。第１の熱媒体流路４８は、熱媒体が流れる複数の平行な流路である。第１の熱媒体流路４８は、熱媒体導入口４５Ｂ及び熱媒体導出口４５Ｃと連通している。第１の熱媒体流路４８は、ＰＴＣヒータ３３の一方の面と対向するように配置されている。 The plurality of fins 46B are provided on the plate member 46A on the side facing the substrate housing portion 45. The plurality of fins 46 </ b> B protrude in the direction toward the substrate housing portion 45.
A first heat medium flow path 48 is defined between the side of the plate-like member 46 </ b> A where the plurality of fins 46 </ b> B are provided and the substrate housing portion 45. The first heat medium flow channel 48 is a plurality of parallel flow channels through which the heat medium flows. The first heat medium channel 48 communicates with the heat medium inlet 45B and the heat medium outlet 45C. The first heat medium flow path 48 is disposed so as to face one surface of the PTC heater 33.
　開口部４９は、板状部材４６Ａを貫通するように設けられている。開口部４９の一端は、第１のシール面４６ａと隣接している。開口部４９の一端には、開口部４９を拡径させる第１の傾斜面４９ａを含む第１の傾斜部４９Ａが設けられている。 The opening 49 is provided so as to penetrate the plate-like member 46A. One end of the opening 49 is adjacent to the first seal surface 46a. At one end of the opening 49, a first inclined portion 49A including a first inclined surface 49a for expanding the diameter of the opening 49 is provided.
　第１の傾斜面４９ａは、第１のシール面４６ａに対して傾斜した面である。第１の傾斜面４９ａの周囲は、第１のシール面４６ａで囲まれている。第１の傾斜面４９ａには、液状ガスケット３２が配置されている。第１の傾斜面４９ａは、液状ガスケット３２を介することで、Ｚ方向において第２のシール面５３ａと対向している。 The first inclined surface 49a is a surface inclined with respect to the first seal surface 46a. The periphery of the first inclined surface 49a is surrounded by a first seal surface 46a. The liquid gasket 32 is disposed on the first inclined surface 49a. The first inclined surface 49a faces the second seal surface 53a in the Z direction through the liquid gasket 32.
　凹部５０は、板状部材４６Ａの第１のシール面４６ａ側に形成された凹部である。凹部５０の一端は、第１のシール面４６ａと隣接している。凹部５０の一端には、凹部５０を拡径させる第１の傾斜面５０ａを含む第１の傾斜部５０Ａが設けられている。 The recess 50 is a recess formed on the first seal surface 46a side of the plate-like member 46A. One end of the recess 50 is adjacent to the first seal surface 46a. At one end of the recess 50, a first inclined portion 50A including a first inclined surface 50a for expanding the diameter of the recess 50 is provided.
　第１の傾斜面５０ａは、第１のシール面４６ａに対して傾斜した面である。第１の傾斜面５０ａの周囲は、第１のシール面４６ａで囲まれている。第１の傾斜面５０ａには、液状ガスケット３２が配置されている。第１の傾斜面５０ａは、液状ガスケット３２を介することで、Ｚ方向において第２のシール面５３ａと対向している。
　第１の傾斜部５０Ａの幅Ｗ２は、例えば、第１の傾斜部４９Ａの幅と等しく構成することが可能である。
　凹部５０の一例としては、例えば、ヒータ収容部４６Ｃやヒータ収容部４６Ｃと一体とされ、第２のケーシング部４２の一部が収容される凹部等を例示することが可能である。 The first inclined surface 50a is a surface inclined with respect to the first seal surface 46a. The periphery of the first inclined surface 50a is surrounded by the first seal surface 46a. A liquid gasket 32 is disposed on the first inclined surface 50a. The first inclined surface 50a faces the second seal surface 53a in the Z direction through the liquid gasket 32.
The width W 2 of the first inclined portion 50A is, for example, can be configured equal to the width of the first inclined portion 49A.
As an example of the recessed part 50, the heater accommodating part 46C and the heater accommodating part 46C are integrated, and the recessed part etc. in which a part of 2nd casing part 42 is accommodated can be illustrated, for example.
　なお、以下の説明では、一例として、第１の傾斜部４９Ａ，５０Ａの幅が等しい場合（つまり、第１の傾斜部４９Ａ，５０Ａの幅が幅Ｗ２の場合）を例に挙げて説明する。 In the following description, as an example, when the first inclined portion 49A, the width of 50A is equal (i.e., the first inclined portion 49A, the width of 50A is the case of the width W 2) will be described by way of example .
　第１の連通口５１は、第１の熱媒体流路４８と連通しており、連通部４３の一部を構成している。第１の連通口５１は、Ｚ方向に延在している。
　第１の連通口５１の一端は、第１のシール面４６ａと隣接している。第１の連通口５１の一端には、第１のシール面４６ａに対して傾斜するとともに、第１の連通口５１の一端を拡径させる第２の傾斜面５１ａを含む第２の傾斜部５１Ａが設けられている。第２の傾斜面５１ａの周囲は、第１のシール面４６ａで囲まれている。
　第１のシール面４６ａに対する第２の傾斜面５１ａの傾斜角度θは、例えば、３０°とすることが可能であるが、この角度に限定されない。 The first communication port 51 communicates with the first heat medium flow path 48 and constitutes a part of the communication part 43. The first communication port 51 extends in the Z direction.
One end of the first communication port 51 is adjacent to the first seal surface 46a. A second inclined portion 51 </ b> A including a second inclined surface 51 a that is inclined with respect to the first seal surface 46 a at one end of the first communication port 51 and expands one end of the first communication port 51. Is provided. The periphery of the second inclined surface 51a is surrounded by the first seal surface 46a.
The inclination angle θ of the second inclined surface 51a with respect to the first seal surface 46a can be, for example, 30 °, but is not limited to this angle.
　第２の傾斜部５１Ａの幅Ｗ３（第２の傾斜部５１Ａが形成された部分の幅Ｗ３）は、第１の傾斜部４９Ａ，５０Ａの幅Ｗ２よりも広くなるように構成するとよい。
　このように、第２の傾斜部５１Ａの幅Ｗ３を第１の傾斜部４９Ａ，５０Ａの幅Ｗ２よりも広くすることで、Ｚ方向で第２の傾斜面５１ａと対向する第２のシール面５３ａと第２の傾斜面５１ａとの間に形成される隙間に、第１のシール面４６ａと第２のシール面５３ａとの間からはみ出した液状ガスケット３２を配置させることが可能となる。 Width W 3 of the second inclined portion 51A (the width W 3 of the portion where the second inclined portion 51A is formed), the first inclined portion 49A, may be configured to be wider than the width W 2 of 50A .
In this way, by increasing the width W 3 of the second inclined portion 51A first inclined portion 49A, than the width W 2 of 50A, a second seal facing the second inclined surface 51a in the Z-direction The liquid gasket 32 protruding from between the first seal surface 46a and the second seal surface 53a can be disposed in the gap formed between the surface 53a and the second inclined surface 51a.
　これにより、連通部４３の内側への液状ガスケット３２のはみ出しが抑制され、連通部４３の径が狭められることを抑制可能となるので、連通部４３を流れる熱媒体の流れの阻害を抑制（具体的には、圧力損失の増大の抑制や、第１及び第２の熱媒体流路４８，５６への熱媒体の分配の悪化を抑制）できる。 As a result, it is possible to suppress the liquid gasket 32 from protruding to the inside of the communication portion 43 and to suppress the diameter of the communication portion 43 from being narrowed, thereby suppressing the inhibition of the flow of the heat medium flowing through the communication portion 43 (specifically Specifically, it is possible to suppress an increase in pressure loss and a deterioration in distribution of the heat medium to the first and second heat medium flow paths 48 and 56).
　また、第２の傾斜部５１Ａの幅Ｗ３は、第１の傾斜部４９Ａ，５０Ａの幅Ｗ２の１．５倍以上２．５倍以下であってもよい。
　第２の傾斜部５１Ａの幅Ｗ３が第１の傾斜部４９Ａ，５０Ａの幅Ｗ２の１．５倍よりも小さいと、第２のシール面５３ａと第２の傾斜面５１ａとの間に形成される隙間の体積が小さくなる。これにより、第１のシール面４６ａと第２のシール面５３ａとの間からはみ出る液状ガスケット３２を上記隙間に留めることが困難となる可能性がある。 The width W 3 of the second inclined portion 51A, the first inclined portion 49A, may be less than or equal to 2.5 times 1.5 times the width W 2 of 50A.
Width W 3 of the second inclined portion 51A is first inclined portion 49A, when less than 1.5 times the width W 2 of 50A, between the second sealing surface 53a and the second inclined surface 51a The volume of the gap formed is reduced. Thereby, it may be difficult to keep the liquid gasket 32 protruding from between the first seal surface 46a and the second seal surface 53a in the gap.
　一方、第２の傾斜部５１Ａの幅Ｗ３が第１の傾斜部４９Ａ，５０Ａの幅Ｗ２の２．５倍よりも大きいと、第２の傾斜部５１Ａの周囲に配置された第１のシール面４６ａの幅Ｗ１を十分に確保することが困難となる可能性がある。このような場合、第１のケーシング部４１と第２のケーシング部４２との間に配置された液状ガスケット３２のシール性能が低下する可能性がある。 On the other hand, the width W 3 of the second inclined portion 51A is first inclined portion 49A, the greater than 2.5 times the width W 2 of 50A, a first arranged around the second inclined portion 51A it may become difficult to sufficiently ensure the width W 1 of the sealing surface 46a. In such a case, the sealing performance of the liquid gasket 32 disposed between the first casing portion 41 and the second casing portion 42 may be lowered.
　したがって、第２の傾斜部５１Ａの幅Ｗ３を第１の傾斜部４９Ａ，５０Ａの幅Ｗ２の１．５倍以上２．５倍以下とすることで、第１のケーシング部４１と第２のケーシング部４２との間に配置された液状ガスケット３２のシール性能を十分に確保した上で、連通部４３を流れる熱媒体の流れの阻害（液状ガスケット３２に起因する阻害）を抑制できる。 Therefore, the width W 3 of the second inclined portion 51A by a first inclined portion 49A, 1.5 times or more of 50A width W 2 of 2.5 times or less, the first casing portion 41 second The sufficient sealing performance of the liquid gasket 32 disposed between the casing portion 42 and the casing portion 42 can be ensured, and the inhibition of the flow of the heat medium flowing through the communication portion 43 (inhibition due to the liquid gasket 32) can be suppressed.
　蓋部４７は、基板収容部４５に対して分離可能な構成とされている。蓋部４７は、ねじで固定されている。蓋部４７は、基板収容空間４５Ａに配置された制御基板３７と対向している。 The lid portion 47 is configured to be separable from the substrate housing portion 45. The lid 47 is fixed with screws. The lid portion 47 faces the control board 37 disposed in the board housing space 45A.
　第２のケーシング部４２は、流路形成部５３と、蓋部５４と、を有する。
　流路形成部５３は、板状部材５３Ａと、複数のフィン５３Ｂと、少なくとも１つの開口部及び凹部（図示せず）と、第２の連通口５５と、を有する。 The second casing part 42 includes a flow path forming part 53 and a lid part 54.
The flow path forming portion 53 includes a plate-like member 53A, a plurality of fins 53B, at least one opening and recess (not shown), and a second communication port 55.
　板状部材５３Ａは、第２のシール面５３ａを有する。第２のシール面５３ａは、第１のシール面４６ａと対向する平面である。第２のシール面５３ａは、Ｚ方向において第１の傾斜面４９ａ，５０ａ、及び第２の傾斜面５１ａと対向している。第２のシール面５３ａには、液状ガスケット３２が配置されている。 The plate-like member 53A has a second seal surface 53a. The second seal surface 53a is a flat surface facing the first seal surface 46a. The second seal surface 53a faces the first inclined surfaces 49a and 50a and the second inclined surface 51a in the Z direction. The liquid gasket 32 is disposed on the second seal surface 53a.
　複数のフィン５３Ｂは、板状部材５３Ａのうち、蓋部５４と対向する側に設けられている。複数のフィン５３Ｂは、蓋部５４に向かう方向に突出している。
　板状部材５３Ａのうち、複数のフィン５３Ｂが設けられた側と蓋部５４との間には、第２の熱媒体流路５６が区画されている。第２の熱媒体流路５６は、熱媒体が流れる複数の平行な流路である。
　第２の熱媒体流路５６は、熱媒体導入口４５Ｂ及び熱媒体導出口４５Ｃと連通している。第２の熱媒体流路５６は、ＰＴＣヒータ３３の他方の面と対向するように配置されている。 The plurality of fins 53B are provided on the plate member 53A on the side facing the lid portion 54. The plurality of fins 53 </ b> B project in a direction toward the lid portion 54.
A second heat medium flow path 56 is defined between the side of the plate-like member 53 </ b> A where the plurality of fins 53 </ b> B are provided and the lid portion 54. The second heat medium flow path 56 is a plurality of parallel flow paths through which the heat medium flows.
The second heat medium flow path 56 communicates with the heat medium inlet 45B and the heat medium outlet 45C. The second heat medium flow path 56 is disposed so as to face the other surface of the PTC heater 33.
　開口部は、板状部材５３Ａを貫通するように設けられている。開口部の一端は、第２のシール面５３ａと隣接している。開口部の一端には、先に説明した第１の傾斜部４９Ａが設けられていない。つまり、開口部の周囲は、第２のシール面５３ａで囲まれている。 The opening is provided so as to penetrate the plate-like member 53A. One end of the opening is adjacent to the second seal surface 53a. The first inclined portion 49A described above is not provided at one end of the opening. That is, the periphery of the opening is surrounded by the second seal surface 53a.
　凹部は、板状部材５３Ａの第２のシール面５３ａ側に形成されている。凹部の一端は、第２のシール面５３ａと隣接している。凹部の一端には、先に説明した第１の傾斜部５０Ａが設けられていない。つまり、凹部の周囲は、第２のシール面５３ａで囲まれている。 The recess is formed on the second seal surface 53a side of the plate-like member 53A. One end of the recess is adjacent to the second seal surface 53a. The first inclined portion 50A described above is not provided at one end of the recess. That is, the periphery of the recess is surrounded by the second seal surface 53a.
　第２の連通口５５は、板状部材５３Ａに設けられており、Ｚ方向に延在している。第２の連通口５５の一端は、第２のシール面５３ａから露出されている。第２の連通口５５の一端は、第１の連通口５１の一端と対向している。
　第２の連通口５５は、第２の熱媒体流路５６及び第１の連通口５１と連通している。第２の連通口５５は、第１の連通口５１とともに、連通部４３を構成している。
　第２の連通口５５の一端には、先に説明した第２の傾斜部５１Ａが設けられていない。つまり、第２の連通口５５の一端の周囲は、第２のシール面５３ａで囲まれている。 The second communication port 55 is provided in the plate-like member 53A and extends in the Z direction. One end of the second communication port 55 is exposed from the second seal surface 53a. One end of the second communication port 55 faces one end of the first communication port 51.
The second communication port 55 communicates with the second heat medium flow channel 56 and the first communication port 51. The second communication port 55 and the first communication port 51 constitute a communication part 43.
The second inclined portion 51A described above is not provided at one end of the second communication port 55. That is, the periphery of one end of the second communication port 55 is surrounded by the second seal surface 53a.
　連通部４３は、ケーシング３１内に区画されている。連通部４３は、Ｚ方向に配置された第１及び第２の連通口５１，５５を含んだ構成とされている。
　連通部４３は、第１の熱媒体流路４８と第２の熱媒体流路５６との間を移動する熱媒体が流れる連通経路として機能する。 The communication part 43 is partitioned in the casing 31. The communication portion 43 is configured to include first and second communication ports 51 and 55 arranged in the Z direction.
The communication part 43 functions as a communication path through which the heat medium moving between the first heat medium flow path 48 and the second heat medium flow path 56 flows.
　液状ガスケット３２は、第１のシール面４６ａと第２のシール面５３ａとの間に設けられており、第１のケーシング部４１と第２のケーシング部４２との間をシールしている。
　液状ガスケット３２のうち、第１のシール面４６ａと第２のシール面５３ａとの間からはみ出した部分は、第１の傾斜面４９ａ，５０ａと第２のシール面５３ａとの間や第２の傾斜面５１ａと第２のシール面５３ａとの間に配置されている。 The liquid gasket 32 is provided between the first seal surface 46 a and the second seal surface 53 a and seals between the first casing portion 41 and the second casing portion 42.
A portion of the liquid gasket 32 that protrudes from between the first seal surface 46a and the second seal surface 53a is between the first inclined surfaces 49a, 50a and the second seal surface 53a or the second seal surface 53a. It arrange | positions between the inclined surface 51a and the 2nd sealing surface 53a.
　先に説明したように、第１の傾斜部４９Ａ，５０Ａの幅Ｗ２は、第２の傾斜部５１Ａの幅Ｗ３よりも小さいため、第１の傾斜部４９Ａ，５０Ａの外側に液状ガスケット３２がはみ出す。一方、第２の傾斜部５１Ａの幅Ｗ３は、第１の傾斜部４９Ａ，５０Ａの幅Ｗ２よりも広いため、第２の傾斜部５１Ａの外側に液状ガスケット３２がはみ出すことはない。 As described above, the first inclined portion 49A, the width W 2 of 50A, since the second smaller than the width W 3 of the inclined portion 51A, liquid gasket on the outer side of the first inclined portion 49A, 50A 32 Protrudes. On the other hand, the width W 3 of the second inclined portion 51A, the first inclined portion 49A, since wider than the width W 2 of 50A, liquid gasket 32 will not protrude outside the second inclined portion 51A.
　液状ガスケット３２としては、例えば、有機溶剤タイプの液状ガスケット、無溶剤タイプの液状ガスケット、水性タイプの液状ガスケット等を用いることが可能である。
　有機溶剤タイプの液状ガスケットとしては、例えば、変性アルキッド系、繊維素エステル系、或いは合成ゴム系の液状ガスケットを用いること可能である。
　無溶剤タイプの液状ガスケットとしては、例えば、フェノール系、変性エステル系、シリコーン系、アクリル系等の液状ガスケットを用いること可能である。
　水性タイプの液状ガスケットとしては、例えば、水性アクリル系の液状ガスケットを用いること可能である。 As the liquid gasket 32, for example, an organic solvent type liquid gasket, a solventless type liquid gasket, an aqueous type liquid gasket, or the like can be used.
As the organic solvent type liquid gasket, it is possible to use, for example, a modified alkyd type, a fiber ester type, or a synthetic rubber type liquid gasket.
As the solventless liquid gasket, it is possible to use, for example, phenol-based, modified ester-based, silicone-based, acrylic-based liquid gaskets.
As an aqueous type liquid gasket, for example, an aqueous acrylic liquid gasket can be used.
　ＰＴＣヒータ３３は、ヒータ収容部４６Ｃに収容されている。ＰＴＣヒータ３３は、第１の熱媒体流路４８と第２の熱媒体流路５６との間に配置されている。ＰＴＣ素子６１と、第１の電極板６２と、第２の電極板６３と、を有する。 The PTC heater 33 is accommodated in the heater accommodating portion 46C. The PTC heater 33 is disposed between the first heat medium flow path 48 and the second heat medium flow path 56. A PTC element 61, a first electrode plate 62, and a second electrode plate 63 are included.
　ＰＴＣ素子６１は、矩形の板状とされた素子であり、第１の電極板６２と第２の電極板６３との間に配置されている。 The PTC element 61 is an element having a rectangular plate shape, and is disposed between the first electrode plate 62 and the second electrode plate 63.
　第１の電極板６２は、板状部材４６Ａと対向するＰＴＣ素子６１の一面に設けられている。第１の電極板６２は、板状とされた電極板本体と、３つの第１の端子６２Ａと、を有する。第１の電極板６２を構成する電極板本体は、３つに分割されている。第２の端子６２Ａは、分割されたそれぞれの電極板本体の外周部に設けられている。
　第１の端子６２Ａは、第１の電極板６２を構成する電極板本体の外周部に設けられている。第１の端子６２Ａは、第１のねじ３８により制御基板３７に対してねじ止めされている。これにより、第１の端子６２Ａは、制御基板３７と電気的に接続されている。 The first electrode plate 62 is provided on one surface of the PTC element 61 facing the plate-like member 46A. The first electrode plate 62 has a plate-like electrode plate body and three first terminals 62A. The electrode plate main body constituting the first electrode plate 62 is divided into three. The second terminal 62A is provided on the outer periphery of each divided electrode plate body.
The first terminal 62 </ b> A is provided on the outer peripheral portion of the electrode plate main body constituting the first electrode plate 62. The first terminal 62A is screwed to the control board 37 with a first screw 38. Thus, the first terminal 62A is electrically connected to the control board 37.
　第２の電極板６３は、流路形成部５３と対向するＰＴＣ素子６１の他面に設けられている。第２の電極板６３は、板状とされた電極板本体と、１つの第２の端子６３Ａと、を有する。第２の端子６３Ａは、第２の電極板６３を構成する電極板本体の外周部に設けられている。
　第２の端子６３Ａは、第２のねじ３９により制御基板３７に対してねじ止めされている。これにより、第２の端子６３Ａは、制御基板３７と電気的に接続されている。 The second electrode plate 63 is provided on the other surface of the PTC element 61 facing the flow path forming portion 53. The second electrode plate 63 has a plate-shaped electrode plate main body and one second terminal 63A. The second terminal 63 </ b> A is provided on the outer peripheral portion of the electrode plate main body constituting the second electrode plate 63.
The second terminal 63A is screwed to the control board 37 by a second screw 39. Thus, the second terminal 63A is electrically connected to the control board 37.
　上記構成とされたＰＴＣヒータ３３は、第１及び第２の熱媒体流路４８，５６を流れる熱媒体を加熱する。ＰＴＣヒータ３３により加熱された熱媒体は、放熱器１６の導入口１６Ａを通じて、放熱器１６内に導入される。 The PTC heater 33 configured as described above heats the heat medium flowing through the first and second heat medium flow paths 48 and 56. The heat medium heated by the PTC heater 33 is introduced into the radiator 16 through the inlet 16 </ b> A of the radiator 16.
　なお、ＰＴＣヒータ３３と流路形成部４６，５３との間には、図示していない絶縁板が設けられている。この絶縁板により、ＰＴＣヒータ３３と流路形成部４６，５３との間は絶縁されている。 An insulating plate (not shown) is provided between the PTC heater 33 and the flow path forming portions 46 and 53. By this insulating plate, the PTC heater 33 and the flow path forming portions 46 and 53 are insulated.
　絶縁部材３４は、枠体７３と、第１のガイド部７５と、第２のガイド部７６と、を有する。枠体７３は、第１の電極板６２の電極板本体、ＰＴＣ素子６１、及び第２の電極板６３の電極板本体よりなる構造体の側面を囲む形状とされている。 The insulating member 34 includes a frame body 73, a first guide portion 75, and a second guide portion 76. The frame 73 has a shape surrounding the side surface of the structure including the electrode plate main body of the first electrode plate 62, the PTC element 61, and the electrode plate main body of the second electrode plate 63.
　枠体７３は、第１の電極板６２，６３の電極板本体、及びＰＴＣ素子６１よりなる積層構造体の側面を囲んだ状態で、流路形成部４６と流路形成部５３の間に配置されている。枠体７３の外周面は、ヒータ収容部４６Ｃの内面と接触している。 The frame body 73 is disposed between the flow path forming portion 46 and the flow path forming portion 53 in a state of surrounding the electrode plate main bodies of the first electrode plates 62 and 63 and the side surface of the laminated structure including the PTC elements 61. Has been. The outer peripheral surface of the frame 73 is in contact with the inner surface of the heater accommodating portion 46C.
　第１のガイド部７５は、枠体７３の長辺に３つ設けられている。２つの第１のガイド部７５は、隣接して設けられている。残りの１つの第１のガイド部７５は、他の２つの第１のガイド部７５から離間した位置に設けられている。 Three first guide portions 75 are provided on the long side of the frame body 73. The two first guide portions 75 are provided adjacent to each other. The remaining one first guide portion 75 is provided at a position separated from the other two first guide portions 75.
　第１のガイド部７５は、Ｚ方向に延在する第１の開口部７５Ａを有する。第１の開口部７５Ａには、第１の端子６２Ａが挿入されている。第１のガイド部７５は、第１の端子６２Ａを囲む形状とされている。
　このような構成とされた第１のガイド部７５を有することで、第１の端子６２Ａの周囲に配置された導体と第１の端子６２Ａとの間を絶縁することができる。 The first guide portion 75 has a first opening 75A extending in the Z direction. The first terminal 62A is inserted into the first opening 75A. The first guide portion 75 has a shape surrounding the first terminal 62A.
By having the first guide portion 75 configured as described above, it is possible to insulate between the conductor arranged around the first terminal 62A and the first terminal 62A.
　第２のガイド部７６は、第１のガイド部７５が設けられた枠体７３の長辺に１つ設けられている。第２のガイド部７６は、１つの第１のガイド部７５に隣接して配置されている。
　第２のガイド部７６は、Ｚ方向に延在する第２の開口部７６Ａを有する。第２のガイド部７６は、第２の端子６３Ａが挿入されている。第２のガイド部７６は、第２の端子６３Ａを囲む形状とされている。
　このような構成とされた第２のガイド部７６を有することで、第２の端子６３Ａの周囲に配置された導体と第２の端子６３Ａとの間を絶縁することができる。 One second guide portion 76 is provided on the long side of the frame 73 provided with the first guide portion 75. The second guide portion 76 is disposed adjacent to one first guide portion 75.
The second guide portion 76 has a second opening 76A extending in the Z direction. The second guide portion 76 has a second terminal 63A inserted therein. The second guide portion 76 has a shape surrounding the second terminal 63A.
By including the second guide portion 76 having such a configuration, it is possible to insulate between the conductor arranged around the second terminal 63A and the second terminal 63A.
　上記構成とされた絶縁部材３４を有することで、ＰＴＣヒータ３３の側面の周囲に配置された導体とＰＴＣヒータ３３の側面との間を絶縁することができるとともに、制御基板３７に対するＰＴＣヒータ３３の位置決めを行うことができる。 By having the insulating member 34 configured as described above, it is possible to insulate between the conductor disposed around the side surface of the PTC heater 33 and the side surface of the PTC heater 33, and the PTC heater 33 with respect to the control board 37. Positioning can be performed.
　制御基板３７は、基板収容空間４５Ａに収容されている。制御基板３７は、基板本体６６と、電子部品６８，６９と、第１の接続部（図示せず）と、第２の接続部（図示せず）と、を有する。 The control board 37 is housed in the board housing space 45A. The control board 37 includes a board body 66, electronic components 68 and 69, a first connection part (not shown), and a second connection part (not shown).
　基板本体６６は、基板収容部４５に固定されている。基板本体６６は、第１の面６６ａと、第２の面６６ｂと、を有する。第１の面６６ａは、蓋部４７と対向する面である。第２の面６６ｂは、第１の面６６ａの反対側に配置された面である。第２の面６６ｂは、基板収容部４５と対向する面である。
　基板本体６６は、板状とされた絶縁基板の両面に回路パターン（制御回路パターンや電源回路パターン等）が形成された構成とされている。 The substrate body 66 is fixed to the substrate housing portion 45. The substrate body 66 has a first surface 66a and a second surface 66b. The first surface 66 a is a surface facing the lid portion 47. The second surface 66b is a surface disposed on the opposite side of the first surface 66a. The second surface 66 b is a surface facing the substrate housing portion 45.
The substrate body 66 has a configuration in which circuit patterns (control circuit patterns, power supply circuit patterns, etc.) are formed on both surfaces of a plate-like insulating substrate.
　電子部品６８は、電子部品６９よりも発熱しやすい電子部品である。電子部品６８は、基板本体６６の第２の面６６ｂに設けられている。電子部品６８は、基板本体６６と電気的に接続されている。電子部品６８としては、例えば、ＩＧＢＴ（ＩｎｓｕｌａｔｅｄＧａｔｅ　Ｂｉｐｏｌａｒ　Ｔｒａｎｓｉｓｔｏｒ：絶縁ゲート型バイポーラトランジスタ）やＦＥＴ（Ｆｉｅｌｄ　ｅｆｆｅｃｔ　ｔｒａｎｓｉｓｔｏｒ：電界効果トランジスタ）等を例示することが可能である。 The electronic component 68 is an electronic component that generates heat more easily than the electronic component 69. The electronic component 68 is provided on the second surface 66 b of the substrate body 66. The electronic component 68 is electrically connected to the board body 66. Examples of the electronic component 68 include an IGBT (Insulated Gate Bipolar Transistor) and a FET (Field Effect Transistor).
　電子部品６９は、基板本体６６の第１の面６６ａに設けられている。電子部品６９は、基板本体６６と電気的に接続されている。 The electronic component 69 is provided on the first surface 66 a of the substrate body 66. The electronic component 69 is electrically connected to the board body 66.
　第１の接続部は、基板本体６６の第２の面６６ｂに設けられている。第１の接続部は、基板本体６６と電気的に接続されている。第１の接続部には、第１の電極板６２を構成する端子が接続されている。 The first connection portion is provided on the second surface 66b of the substrate body 66. The first connection portion is electrically connected to the substrate body 66. A terminal constituting the first electrode plate 62 is connected to the first connection portion.
　第２の接続部は、基板本体６６の第２の面６６ｂに設けられている。第２の接続部は、基板本体６６と電気的に接続されている。第２の接続部には、第２の電極板６３を構成する端子が接続されている。 The second connection portion is provided on the second surface 66 b of the substrate body 66. The second connection portion is electrically connected to the substrate body 66. A terminal constituting the second electrode plate 63 is connected to the second connection portion.
　本実施形態の熱媒体加熱装置２５によれば、第１の連通口５１の一端を拡径させる第２の傾斜面５１ａを含む第２の傾斜部５１Ａを設けるとともに、第１の連通口５１の一端に設けられた第２の傾斜部５１Ａの幅Ｗ３を、少なくとも１つの開口部４９及び凹部５０の一端に設けられた第１の傾斜部４９Ａ，５０Ａの幅Ｗ２よりも広くすることで、Ｚ方向で第２の傾斜面５１ａと対向する第２のシール面５３ａと第２の傾斜面５１ａとの間に形成される隙間に、第１のシール面４６ａと第２のシール面５３ａとの間からはみ出した液状ガスケット３２を配置させることが可能となる。 According to the heat medium heating apparatus 25 of the present embodiment, the second inclined portion 51A including the second inclined surface 51a that expands the diameter of one end of the first communication port 51 is provided, and the first communication port 51 a second inclined portion 51A width W 3 of which is provided at one end, by widely least one of the first inclined portion 49A provided at one end of the opening 49 and the recess 50, than the width W 2 of 50A In the gap formed between the second inclined surface 51a and the second inclined surface 51a facing the second inclined surface 51a in the Z direction, the first sealing surface 46a and the second sealing surface 53a It is possible to arrange the liquid gasket 32 protruding from between the two.
　これにより、連通部４３の内側への液状ガスケット３２のはみ出しが抑制され、連通部４３の径が狭められることを抑制可能となるので、連通部４３を流れる熱媒体の流れの阻害を抑制（具体的には、圧力損失の増大の抑制や、第１及び第２の熱媒体流路４８，５６への熱媒体の分配の悪化を抑制）できる。 As a result, it is possible to suppress the liquid gasket 32 from protruding to the inside of the communication portion 43 and to suppress the diameter of the communication portion 43 from being narrowed, thereby suppressing the inhibition of the flow of the heat medium flowing through the communication portion 43 (specifically Specifically, it is possible to suppress an increase in pressure loss and a deterioration in distribution of the heat medium to the first and second heat medium flow paths 48 and 56).
　また、本実施形態の車両用空調装置１０は、上記熱媒体加熱装置２５と、外気または車室内の空気を循環させるブロア１３と、ブロア１３の下流側に設けられ、外気または空気を冷却する冷却器１５と、冷却器１５の下流側に設けられ、ＰＴＣヒータ３３により加熱された熱媒体が循環される放熱器１６と、備えることで、第１の熱媒体流路４８と第２の熱媒体流路５６とを連通する連通部４３を流れる熱媒体の流れの阻害を抑制できる。 Further, the vehicle air conditioner 10 of the present embodiment is provided with the heat medium heating device 25, the blower 13 that circulates the outside air or the air in the vehicle interior, and the cooling that cools the outside air or air provided downstream of the blower 13. The first heat medium flow path 48 and the second heat medium are provided by the heat exchanger 15 and the radiator 16 that is provided downstream of the cooler 15 and in which the heat medium heated by the PTC heater 33 is circulated. Inhibition of the flow of the heat medium flowing through the communication portion 43 communicating with the flow path 56 can be suppressed.
　なお、本実施形態では、一例として、第１のケーシング部４１の第１のシール面４６ａ側に第１及び第２の傾斜部４９Ａ，５０Ａ，５１Ａを設けた場合を例に挙げて説明したが、第１及び第２の傾斜部４９Ａ，５０Ａ，５１Ａは、第２のケーシング部４２の第２のシール面５３ａ側に設けてもよい。 In the present embodiment, as an example, the case where the first and second inclined portions 49A, 50A, 51A are provided on the first seal surface 46a side of the first casing portion 41 has been described as an example. The first and second inclined portions 49 </ b> A, 50 </ b> A, 51 </ b> A may be provided on the second seal surface 53 a side of the second casing portion 42.
　つまり、第１の傾斜部４９Ａ，５０Ａを流路形成部５３の第２のシール面５３ａ側に配置された少なくとも１つの開口部及び凹部の一端を囲むように設け、第２の傾斜部５１Ａを第２の連通部５５の一端を囲むように設けてもよい。
　この場合、本実施形態の熱媒体加熱装置２５及び車両用空調装置１０と同様な効果を得ることができる。 That is, the first inclined portions 49A and 50A are provided so as to surround at least one opening portion and one end of the concave portion arranged on the second seal surface 53a side of the flow path forming portion 53, and the second inclined portion 51A is provided. You may provide so that the end of the 2nd communication part 55 may be enclosed.
In this case, the same effects as those of the heat medium heating device 25 and the vehicle air conditioner 10 of the present embodiment can be obtained.
　以上、本発明の好ましい実施形態について詳述したが、本発明はかかる特定の実施形態に限定されるものではなく、特許請求の範囲内に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。 The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.
　本発明は、熱媒体加熱装置、及び該熱媒体加熱装置を備えた車両用空調装置に適用可能である。 The present invention is applicable to a heat medium heating device and a vehicle air conditioner including the heat medium heating device.
　１０　　車両用空調装置
　１１　　ハウジング
　１１Ａ　　取り込み口
　１１Ｂ　　吐出口
　１１Ｃ　　流路
　１３　　ブロア
　１５　　冷却器
　１６　　放熱器
　１６Ａ　　導入口
　１６Ｂ　　導出口
　１７　　エアミックスダンパ
　１９　　熱媒体循環回路
　２１　　循環ライン
　２３　　タンク
　２４　　ポンプ
　２５　　熱媒体加熱装置
　３１　　ケーシング
　３２　　液状ガスケット
　３３　　ＰＴＣヒータ
　３４　　絶縁部材
　３７　　制御基板
　３８　　第１のねじ
　３９　　第２のねじ
　４１　　第１のケーシング部
　４２　　第２のケーシング部
　４３　　連通部
　４５　　基板収容部
　４５Ａ　　基板収容空間
　４５Ｂ　　熱媒体導入口
　４５Ｃ　　熱媒体導出口
　４６，５３　　流路形成部
　４６ａ　　第１のシール面
　４６Ａ，５３Ａ　　板状部材
　４６Ｂ，５３Ｂ　　フィン
　４６Ｃ　　ヒータ収容部
　４７，５４　　蓋部
　４８　　第１の熱媒体流路
　４９　　開口部
　４９ａ，５０ａ　　第１の傾斜面
　４９Ａ，５０Ａ　　第１の傾斜部
　５０　　凹部
　５１　　第１の連通口
　５１ａ　　第２の傾斜面
　５１Ａ　　第２の傾斜部
　５３ａ　　第２のシール面
　５５　　第２の連通口
　５６　　第２の熱媒体流路
　６１　　ＰＴＣ素子
　６２　　第１の電極板
　６２Ａ　　第１の端子
　６３　　第２の電極板
　６３Ａ　　第２の端子
　６６　　基板本体
　６６ａ　　第１の面
　６６ｂ　　第２の面
　６８，６９　　電子部品
　７３　　枠体
　７５　　第１のガイド部
　７５Ａ　　第１の開口部
　７６　　第２のガイド部
　７６Ａ　　第２の開口部
　Ｗ１～Ｗ３　　幅
　θ　　傾斜角度 DESCRIPTION OF SYMBOLS 10 Vehicle air conditioner 11 Housing 11A Intake port 11B Discharge port 11C Flow path 13 Blower 15 Cooler 16 Radiator 16A Inlet port 16B Outlet port 17 Air mix damper 19 Heat medium circulation circuit 21 Circulation line 23 Tank 24 Pump 25 Heat medium heating Device 31 Casing 32 Liquid gasket 33 PTC heater 34 Insulating member 37 Control board 38 First screw 39 Second screw 41 First casing part 42 Second casing part 43 Communication part 45 Substrate accommodating part 45A Substrate accommodating space 45B Heat Medium inlet 45C Heat medium outlet 46, 53 Flow path forming part 46a First seal surface 46A, 53A Plate members 46B, 53B Fins 46C Heater accommodating part 47, 54 Lid part 48 First heat medium flow path 49 Opening Part 49a, 0a 1st inclined surface 49A, 50A 1st inclined part 50 Recessed part 51 1st communicating port 51a 2nd inclined surface 51A 2nd inclined part 53a 2nd sealing surface 55 2nd communicating port 56 2nd Heat medium channel 61 PTC element 62 First electrode plate 62A First terminal 63 Second electrode plate 63A Second terminal 66 Substrate body 66a First surface 66b Second surface 68, 69 Electronic component 73 Frame 75 first guide portion 75A first opening 76 second guide portion 76A second opening W 1 ~ W 3 width θ angle of inclination

Claims (3)

  1. 　平面とされた第１のシール面、熱媒体が流れる第１の熱媒体流路、及び該第１の熱媒体流路と連通され、かつ一端が第１のシール面と隣接する第１の連通口を含む第１のケーシング部と、前記第１のシール面と対向する平面とされた第２のシール面、前記熱媒体が流れる第２の熱媒体流路、及び該第２の熱媒体流路と連通され、前記第２のシール面と隣接する一端が前記第１の連通口の一端と連通された第２の連通口を含む第２のケーシング部と、前記第１の連通口及び前記第２の連通口を含む連通部と、前記第１及び第２のケーシング部に設けられた少なくとも１つの開口部及び凹部と、を有するケーシングと、
    　前記ケーシング内に収容され、前記第１の熱媒体流路と前記第２の熱媒体流路との間に配置されたＰＴＣヒータと、
    　前記第１のシール面と前記第２のシール面との間に設けられた液状ガスケットと、
    　を備え、
    　前記開口部及び凹部の一端には、前記第１のシール面または前記第２のシール面に対して傾斜するとともに、前記開口部または前記凹部を拡径させる第１の傾斜面を含む第１の傾斜部が設けられており、
    　前記第１及び第２の連通口の一端のうち、一方の一端には、前記第１のシール面または前記第２のシール面に対して傾斜するとともに、前記第１の連通口または前記第２の連通口の一端を拡径させる第２の傾斜面を含む第２の傾斜部が設けられており、
    　前記第２の傾斜部の幅は、前記第１の傾斜部の幅よりも広い熱媒体加熱装置。     A first sealing surface that is a flat surface, a first heat medium channel through which a heat medium flows, and a first communication that communicates with the first heat medium channel and has one end adjacent to the first seal surface. A first casing portion including a mouth; a second sealing surface which is a flat surface facing the first sealing surface; a second heat medium flow path through which the heat medium flows; and the second heat medium flow A second casing portion that includes a second communication port that communicates with the road and that has one end adjacent to the second sealing surface and one end of the first communication port; the first communication port; A casing having a communication portion including a second communication port, and at least one opening and a recess provided in the first and second casing portions;
    A PTC heater housed in the casing and disposed between the first heat medium flow path and the second heat medium flow path;
    A liquid gasket provided between the first sealing surface and the second sealing surface;
    With
    One end of the opening and the recess includes a first inclined surface that is inclined with respect to the first seal surface or the second seal surface and that expands the diameter of the opening or the recess. An inclined part is provided,
    One end of the first and second communication ports is inclined with respect to the first seal surface or the second seal surface at one end, and the first communication port or the second port. A second inclined portion including a second inclined surface for expanding the diameter of one end of the communication port is provided.
    The width of the second inclined part is a heat medium heating device wider than the width of the first inclined part.
  2. 　前記第２の傾斜部の幅は、前記第１の傾斜部の幅の１．５倍以上２．５倍以下である請求項１記載の熱媒体加熱装置。 The heat medium heating device according to claim 1, wherein the width of the second inclined portion is 1.5 times or more and 2.5 times or less than the width of the first inclined portion.
  3. 　請求項１または２記載の熱媒体加熱装置と、
    　外気または車室内の空気を循環させるブロアと、
    　前記ブロアの下流側に設けられ、前記外気または前記空気を冷却する冷却器と、
    　前記冷却器の下流側に設けられ、前記ＰＴＣヒータにより加熱された前記熱媒体が循環される放熱器と、
    　を備えた車両用空調装置。     The heat medium heating device according to claim 1 or 2,
    A blower that circulates outside air or air in the passenger compartment;
    A cooler that is provided downstream of the blower and cools the outside air or the air;
    A radiator that is provided on the downstream side of the cooler and in which the heat medium heated by the PTC heater is circulated;
    A vehicle air conditioner comprising
PCT/JP2018/001368 2017-02-17 2018-01-18 Heat medium heating apparatus and vehicle air conditioning apparatus WO2018150796A1 (en)

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JP7126411B2 (en) * 2018-09-11 2022-08-26 三菱重工サーマルシステムズ株式会社 Heat medium heating device and vehicle air conditioner
JP2020044865A (en) * 2018-09-14 2020-03-26 三菱重工サーマルシステムズ株式会社 Heating medium heater and vehicle air conditioner
JP2021128849A (en) * 2020-02-13 2021-09-02 三菱重工サーマルシステムズ株式会社 Heat medium heating device and vehicle air conditioner
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